Counterbalancing device for valves.



G. B. REDRUP. GQUNT'ERBALANCING DEvCE FOR VALVES'.

APPLIGATION FILED JUNE 15,1911.

Patented June 11, 1919.

.certain newy and Counterbalancmg Device i. the valve and consequently be affected by centrifugal action in .valve with a seat B1. v4:0-

j Like letters indicate liife parts throughout 'and having a central cnaaLns BENJAMIN Banane, or Cannara, ENGLAND.y .t

counrnnsnaancme nnvrcnroa vALvEs. y l

specification of Lettersrateat.' 'Application filed `Tune 15, 1911.

ncaaaei. Patented Jane 1i, iena.

serial No. 633,336.

To all who-m it may concern:

Beit-known that I, CHARLES BENJAMIN REDRUP, a subject of the King of England,-

residing at Canton, Cardi, county of Glamorgan, Wales, England, have invented useful Im other and the two segmental portionslie on opposite sides of the valve stem D1. j --The counter-balance device operates to insure that the valve D will always open under the same degree of suction. Where rovements in the counter-balance devicevis placed at some or Valves, of which the followlng is a speciiication. The invention relates to a counter-balancing-devicev for a valve for use with internal combustion engines of the rotatin.; cylinder type" A According to the present invention there employed with a suction valve recessed on one side, a counter-balance device mounted in the recess so that it may lieat the same distance from the axis of rotation as control, it is difficult to so lconstruct it as to properly' control the By placing the weighted arms E, however, 1n a recessed portion of the valve lt-hey are equally affected with the valve bycen-trifugal action and therefore can be readily ad- )usted to properly counteract the centrifugal effect. Bypivoting the two arms on the valve itself they can be firmly secured With-N out interfering with liable to be broken when these devices are pivotedto it, and as the arms tend'to rise under centrifugal action` the lugs E3 press against the end of the hollow guide C2 a degree properly pro-y portionated to, that operating upon the The invention further relates to various details of construction hereinafter fully described and whereof the novel features are pointed out in the claims.

In the drawings accompanying this speci- 'fication which illustrate one method of carrying out this inventionz-Figure vl is a central section through the complete valve parallel with its axis of piovement, and Fig.

`is a plan of the suction valve.

for the purpose described.

2. For internal combustion enginesof the rotating cylinder typethe Combination with a suction valve recessed on one side, of arms pivotally connected to the valve within the recess, for the purpose described.

3. For internal combustion engines of the rotating cylinder type the combination with a suction -valve recessed on one side, of arms pivotally connected to the valve at opposite points within the recess and carrying weights at their free described. Il. For internal combustion engines of the rotating cylinder type the combination with la suction valve recessed on one side, of arms pivotally connected to the valve at opposite points Within the recess and carrying weights at their free ends, and means for limiting the centrifugal movement of the the drawings.

represents an engine cylinder which is one of a group carried by a rotating crankchamber. The cylinder'is screw-threaded at YA1 to receive the screw-threaded end of a cylindricalxcasing B, which is provided Within the casing B is mounted a mechanically operated mushroom exhaust valve C adapted to seat at B1 hollow guide C?, in, which is slldably mounted the stem D1 of asuction inlet valve D which is adapted to formed on the valve C. recessed or dished on its this recessed portion two arms E are mounted. One end of each arm is pivoted to earsE.1 fixed to the valve and the other end-of each'arm is weighted by a .segmental portion E2. ,On each. arm is a lug E that li'es op os1te-the base ofthe arms, substantially as described. hollow g ide C2 of t e valve C. The armsl 5. For internal combustion engines of the are 'so is'posed that the weighted end of rotating cylinder type, the combinationwlth one lever 1s opposite the hinged end of the a suction valve recessed cnone side, of 'a seat on the seat Cu The valve D is upper side and in the stem D1 which is which is fiired relatively to the seating of` ends, substantially as" distance from the mass of `the valve-it is to valve at all speeds.v

80z and desire counter-balance device mounted in the recess stem fixed to pivotally con ranged 1n the the valve nected to recess,

free .ends of the arms,

guide. for. limiting ment of the arms,

6. For internal c rot-ating cylin a suction valve recessed on one from the-arms and adapted to engage the the centrifugal move- 'f substantially as described: f ombustion engines of the der type the vcombination with s having one of their ends weights carried by Athe pivotally connected to the valve at opposite points within the recess and carrying Weights of segmental form at ends, substantially as described. s f

a .hollow guide for the valve and ar-4 and lugs projecting name to this specification in the presence of two subscribing witnesses.

' i CHARLES ,BENJAMIN REDBUP.' r

Witnesses: f

A. M. HAYWARD,

side, of arms HARRY B. BRIDGES.

their vfree In testimony whereofI have signed my y 

